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1. 发明授权

US08718191B2 Method and apparatus for transmitting/receiving data in wireless communication system 有权
标题翻译：用于在无线通信系统中发送/接收数据的方法和装置
公开(公告)号：US08718191B2
公开(公告)日：2014-05-06
申请号：US13033202
申请日：2011-02-23
申请人： Il-Gu Lee , In-Kyeong Choi , Yu-Ro Lee , Jong-Ee Oh , Eun-Young Choi , Sok-Kyu Lee
发明人： Il-Gu Lee , In-Kyeong Choi , Yu-Ro Lee , Jong-Ee Oh , Eun-Young Choi , Sok-Kyu Lee
IPC分类号： H04L27/20
CPC分类号： H04L27/18 , H04L27/0008
摘要： A method for transmitting, by a transmitting terminal, data to a receiving terminal in a wireless communication system includes: generating a first detection field including symbols modulated by using a BPSK data tone; generating a second detection field including symbols modulated such that an even numbered subcarrier and an odd numbered subcarrier have a phase difference of 90 degrees; generating a data packet including the first detection field, the second detection field, and the data; and transmitting the data packet.
摘要翻译：一种在无线通信系统中由发送终端向接收终端发送数据的方法包括：生成包括通过使用BPSK数据音调调制的符号的第一检测字段; 产生包括被调制的符号的第二检测场，使得偶数副载波和奇数副载波具有90度的相位差; 生成包括第一检测区域，第二检测区域和数据的数据分组; 并发送数据包。

2. 发明授权

US08687509B2 Method for beamforming 有权
标题翻译：波束成形方法
公开(公告)号：US08687509B2
公开(公告)日：2014-04-01
申请号：US12735143
申请日：2008-08-29
申请人： In-Kyeong Choi , Dong Seung Kwon , Ji Won Kang , Chung Yong Lee
发明人： In-Kyeong Choi , Dong Seung Kwon , Ji Won Kang , Chung Yong Lee
IPC分类号： H04B7/216
CPC分类号： H04B7/0617 , H04B7/0632 , H04B7/0639
摘要： The present invention relates to a method for random beam-forming based on a codebook. The method includes generating a first random variable corresponding to a Gaussian distribution; generating a second random variable corresponding to a uniform distribution; generating a plurality of beam elements by using the first variable, the second variable, spatial correlation between channels, and indexes of transmitting antennas; and forming a beam by using the plurality of beam elements.
摘要翻译：本发明涉及一种基于码本的随机波束形成方法。该方法包括生成对应于高斯分布的第一随机变量; 产生对应于均匀分布的第二随机变量; 通过使用第一变量，第二变量，信道之间的空间相关性和发送天线的索引来生成多个波束单元; 以及通过使用所述多个梁元件形成梁。

3. 发明授权

US08077792B2 Method and apparatus for allocating transmission power in communication system with multiple antennas 有权
标题翻译：用于在具有多个天线的通信系统中分配发射功率的方法和装置
公开(公告)号：US08077792B2
公开(公告)日：2011-12-13
申请号：US11636780
申请日：2006-12-11
申请人： Yu-Ro Lee , In-Kyeong Choi , Dong-Seung Kwon
发明人： Yu-Ro Lee , In-Kyeong Choi , Dong-Seung Kwon
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04W52/42 , H04B7/0434 , H04L5/0023 , H04L5/0044 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W52/04 , H04W52/346
摘要： In a method for allocating transmission power in a communication system including multiple antennas, a plurality of subcarriers are grouped by a plurality of groups, and each group includes at least one subcarrier. A transmission power weight and an antenna transmission vector are calculated for each group by using channel information, a transmission power for each group of each antenna is calculated by using the transmission power weight and the antenna transmission vector for each group, and transmission signals are transmitted through the multiple antennas after determining which signals need to be transmitted from the multiple antennas by using the transmission power.
摘要翻译：在包括多个天线的通信系统中分配发送功率的方法中，多个子载波被多个组分组，每个组包括至少一个子载波。通过使用信道信息为每个组计算发送功率权重和天线发送矢量，通过使用每组的发送功率权重和天线发送矢量来计算每个天线的每组的发送功率，并且发送发送信号在通过使用发送功率确定需要从多个天线发送哪些信号之后，通过多个天线。

4. 发明授权

US07872963B2 MIMO-OFDM system using eigenbeamforming method 有权
标题翻译：使用特征波束成形方法的MIMO-OFDM系统
公开(公告)号：US07872963B2
公开(公告)日：2011-01-18
申请号：US10584641
申请日：2004-11-25
申请人： In-Kyeong Choi , Seong-Rag Kim , Dong-Seung Kwon , Jin-Ho Choi
发明人： In-Kyeong Choi , Seong-Rag Kim , Dong-Seung Kwon , Jin-Ho Choi
IPC分类号： H04J11/00
CPC分类号： H04L27/2626 , H04B7/0417 , H04B7/0634 , H04B7/065 , H04B7/066 , H04L1/06 , H04L1/0693 , H04L25/03343 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.
摘要翻译：公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量，通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

5. 发明申请

US20100215085A1 DECODING METHOD FOR SPACE-TIME ENCODING TRANSMISSION SCHEME IN WITH MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM AND RECEIVING APPARATUS FOR USING THE METHOD 有权
标题翻译：多输入多输出系统空间编码传输方案的解码方法及使用方法的接收装置
公开(公告)号：US20100215085A1
公开(公告)日：2010-08-26
申请号：US11721110
申请日：2005-12-09
申请人： Seung-Joon Lee , Dong-Seung Kwon , Seong-Rag Kim , In-Kyeong Choi
发明人： Seung-Joon Lee , Dong-Seung Kwon , Seong-Rag Kim , In-Kyeong Choi
IPC分类号： H04B1/38 , H04L27/00
CPC分类号： H04L25/0208 , H04L1/0631 , H04L1/0668
摘要： A receiver according to an exemplary embodiment of the present invention receives a transmitted signal, converts the signal to a predetermined symbol, and estimates channel information including a channel gain of a channel of the transmitted signal. In addition, the receiver generates an intermediate processing value for decoding the signal based on the estimated channel information and the symbol, and normalizes the intermediate processing value to the channel gain to generate a reference value. The generated reference value is used for a soft-decision value for decoding the signal. In addition, when the signal is decoded by using a hard-decision value, a constellation point value that is closest to the reference values is generated and set as the hard-decision value.
摘要翻译：根据本发明的示例性实施例的接收机接收发送信号，将该信号转换成预定符号，并且估计包括发送信号的信道的信道增益的信道信息。此外，接收器基于估计的信道信息和符号生成用于对信号进行解码的中间处理值，并且将中间处理值归一化为信道增益以生成参考值。生成的参考值用于解码信号的软判决值。此外，当通过使用硬判决值来解码信号时，生成最接近参考值的星座点值并将其设置为硬判定值。

6. 发明授权

US07263118B2 Interference canceling device and method in mobile communication system 失效
标题翻译：移动通信系统中的干扰消除装置和方法
公开(公告)号：US07263118B2
公开(公告)日：2007-08-28
申请号：US10331783
申请日：2002-12-31
申请人： In-Kyeong Choi , Seong-Rag Kim , Jin-Kyu Choi
发明人： In-Kyeong Choi , Seong-Rag Kim , Jin-Kyu Choi
IPC分类号： H04L27/30
CPC分类号： H04B1/71075 , H04B1/71072 , H04B1/7117 , H04B1/712 , H04B17/336
摘要： An interference canceller is herein disclosed wherein a baseband signal is input to a detector's fingers, and the fingers detect multi-path signals and estimate the baseband signal's channel. An MRC uses the finger's despread signal and the channel estimate to output a soft bit decision value, while a signal regenerator uses a hard bit decision value and the finger's channel estimate to regenerate the baseband signal. An SIR measurer uses a soft bit decision value and a despreader's channel estimate to measure an SIR. A signal selector compares each detector's SIR measurement value with a target SIR, and when the SIR measurement value is greater than the target SIR, it selects the detector's regeneration signal to group received signals. A subtractor subtracts the regeneration signal from the baseband signal.
摘要翻译：这里公开了一种干扰消除器，其中将基带信号输入到检测器的手指，并且手指检测多路径信号并估计基带信号的信道。 MRC使用手指的解扩信号和信道估计来输出软比特判定值，而信号再生器使用硬比特判定值和手指的信道估计来重新生成基带信号。 SIR测量器使用软比特判定值和解扩器的信道估计来测量SIR。信号选择器将每个检测器的SIR测量值与目标SIR进行比较，并且当SIR测量值大于目标SIR时，它选择检测器的再生信号以对接收到的信号进行分组。减法器从基带信号中减去再生信号。

7. 发明申请

US20070177681A1 Mimo-ofdm system using eigenbeamforming method 有权
标题翻译：使用特征波束形成方法的Mimo-ofdm系统
公开(公告)号：US20070177681A1
公开(公告)日：2007-08-02
申请号：US10584641
申请日：2004-11-25
申请人： In-Kyeong Choi , Seong-Rag Kim , Dong-Seung Kwon , Jin-Ho Choi
发明人： In-Kyeong Choi , Seong-Rag Kim , Dong-Seung Kwon , Jin-Ho Choi
IPC分类号： H04L27/00 , H04K1/10 , H04L27/28
CPC分类号： H04L27/2626 , H04B7/0417 , H04B7/0634 , H04B7/065 , H04B7/066 , H04L1/06 , H04L1/0693 , H04L25/03343 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.
摘要翻译：公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量，通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

8. 发明授权

US08891643B2 Method and apparatus for allocating transmission power in multi input multi output system 有权
标题翻译：在多输入多输出系统中分配发射功率的方法和装置
公开(公告)号：US08891643B2
公开(公告)日：2014-11-18
申请号：US13620517
申请日：2012-09-14
申请人： In Kyeong Choi , Sok Kyu Lee
发明人： In Kyeong Choi , Sok Kyu Lee
IPC分类号： H04K1/10 , H04L27/28 , H04W52/24 , H04W52/42
CPC分类号： H04W52/243 , H04B7/0443 , H04W52/42
摘要： A method and apparatus for allocating transmission power in a transmission terminal having at least one antenna of a multi-input multi-output (MIMO) system are provided. The method includes: measuring inter-stream interference of a plurality of streams; measuring inter-user interference of a plurality of users; and determining the transmission power based on the inter-stream interference and the inter-user interference, wherein the transmission power is determined using an iterative water-filling algorithm in which the Karush-Kuhn-Tucker (KKT) system is iteratively applied to all of the plurality of streams and all of the plurality of users. According to the present invention, several receive antennas are mounted in the MIMO system, thereby making it possible to receive multiple streams. In addition, when the multiple streams are received, transmission power may be allocated to each transmission stream.
摘要翻译：提供一种用于在具有多输入多输出（MIMO）系统的至少一个天线的传输终端中分配传输功率的方法和装置。该方法包括：测量多个流的流间干扰; 测量多个用户的用户间干扰; 以及基于所述流间干扰和所述用户间干扰来确定所述传输功率，其中，所述传输功率是使用迭代注水算法确定的，其中所述Karush-Kuhn-Tucker（KKT）系统被迭代地应用于多个流和所有多个用户。根据本发明，在MIMO系统中安装多个接收天线，从而可以接收多个流。此外，当接收到多个流时，可以将发送功率分配给每个传输流。

9. 发明授权

US08761061B2 Apparatus and method for transmitting/receiving data in communication system 有权
标题翻译：在通信系统中发送/接收数据的装置和方法
公开(公告)号：US08761061B2
公开(公告)日：2014-06-24
申请号：US13336832
申请日：2011-12-23
申请人： In-Kyeong Choi , Sok-Kyu Lee
发明人： In-Kyeong Choi , Sok-Kyu Lee
IPC分类号： H04B7/00
CPC分类号： H04B7/0452 , H04L25/03955 , H04L25/03961
摘要： Disclosed is an apparatus for transmitting data in a communication system, including: a receiving unit configured to receive signals from multi-users by a multi-user-multi input multi output (MIMO) scheme and acquire channel information from the users; a calculation unit configured to calculate precoding vectors for the users using the channel information; a precoding unit configured to precode data of the users using the precoding vectors; and a transmitting unit configured to transmit the precoded data to users by the multi user-MIMO scheme.
摘要翻译：公开了一种用于在通信系统中发送数据的装置，包括：接收单元，被配置为通过多用户多输入多输出（MIMO）方案从多用户接收信号，并从用户获取信道信息; 计算单元，被配置为使用所述信道信息来计算用户的预编码向量; 预编码单元，被配置为使用所述预编码向量来对所述用户的数据进行预编码; 以及发送单元，被配置为通过多用户MIMO方案向用户发送预编码的数据。

10. 发明申请

US20130266054A1 METHOD AND APPARATUS FOR ALLOCATING TRANSMISSION POWER IN MULTI INPUT MULTI OUTPUT SYSTEM 有权
标题翻译：用于在多输入多输出系统中分配传输功率的方法和装置
公开(公告)号：US20130266054A1
公开(公告)日：2013-10-10
申请号：US13620517
申请日：2012-09-14
申请人： In Kyeong CHOI , Sok Kyu LEE
发明人： In Kyeong CHOI , Sok Kyu LEE
IPC分类号： H04W52/24 , H04B17/00
CPC分类号： H04W52/243 , H04B7/0443 , H04W52/42
摘要： A method and apparatus for allocating transmission power in a transmission terminal having at least one antenna of a multi-input multi-output (MIMO) system are provided. The method includes: measuring inter-stream interference of a plurality of streams; measuring inter-user interference of a plurality of users; and determining the transmission power based on the inter-stream interference and the inter-user interference, wherein the transmission power is determined using an iterative water-filling algorithm in which the Karush-Kuhn-Tucker (KKT) system is iteratively applied to all of the plurality of streams and all of the plurality of users. According to the present invention, several receive antennas are mounted in the MIMO system, thereby making it possible to receive multiple streams. In addition, when the multiple streams are received, transmission power may be allocated to each transmission stream.
摘要翻译：提供一种用于在具有多输入多输出（MIMO）系统的至少一个天线的传输终端中分配传输功率的方法和装置。该方法包括：测量多个流的流间干扰; 测量多个用户的用户间干扰; 以及基于所述流间干扰和所述用户间干扰来确定所述传输功率，其中，所述传输功率是使用迭代注水算法确定的，其中所述Karush-Kuhn-Tucker（KKT）系统被迭代地应用于多个流和所有多个用户。根据本发明，在MIMO系统中安装多个接收天线，从而可以接收多个流。此外，当接收到多个流时，可以将发送功率分配给每个传输流。

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